Home
Subjects
Create
Search
Log in
Sign up
Upgrade to remove ads
Only $2.99/month
Physics Semester EXAM SG
STUDY
Flashcards
Learn
Write
Spell
Test
PLAY
Match
Gravity
Terms in this set (60)
Measurement for length/distance?
Meters
Time
seconds (s)
Mass measurement?
kilograms (kg)
Newton measurement?
(Kg×m)/s^2
Resultant
sum of adding two or more vectors.
Freefall
an objects motion only under the influence of gravity.
Gravity
an accelerant/ pulls at (9.8m)/s^2
projectile
an object shot through the air.
velocity
v = d/t
momentum
p = mv / the product of an object's mass times it's velocity.
trajectory
An object's path through face.
Uniform circular motion
the movement of an object at a constant speed around a circle at a fixed radius.
Centripetal Acceleration
the acceleration of an object in uniform circular motion towards the center or center seeking.
Centripetal Force
The net force towards the center of the circle.
reference frame
a coordinate system from which motion is viewed.
gravitational force
the force of attraction between two objects must be proportional to the object's mass.
law of universal gravitation
states that objects attract other objects with a force that is proportional to the product of their mass and inversely proportional to the square of the distance.
The Gravitational constant
G = 6.67*10^-11(N x m^2)/kg^2
Earth's mass
5.98 x 10^24 kg
impulse
the product of the average force on an object and the time interval over which it acts.
impulse-momentum theorem
An impulse acting on an object is equal to the object's final momentum minus the object's initial momentum.
closed system
mass is neither gained or lost.
law of conservation of momentum
states that the momentum of any closed, isolated system does not change.
isolated system
no net external force is exerted on the system.
Physics
branch of science that involves the study of the physical world.
Vector
contains quantities that has both magnitude and direction. Displacement.
Scalar
A quantity that is just a number without any direction, such as distance, time, or temperature.
acceleration
the rate at which an object changes velocity.
free-body-diagram
physical representation that shows the forces acting on a system.
net force
a term for vector sum of all the forces on an object.
Newton's 2nd Law
states that acceleration of an object is proportional to the net force and inversely proportional to the mass of the object being accelerated.
Newton's 1st law
Part 1: An object at rest will stay at rest until a force acts upon it.
Part 2: An object that is in motion will stay in motion until a force acts upon it.
Part 3: An object moving in a straight line will stay moving in a straight line.
inertia
tendency of an object to resist velocity changes,
equilibrium
the net force of an object when it is zero.
Newton's 3rd Law
states that all forces comes in pairs. the two forces in a pair act on different objects that are equal in force and opposite in direction.
normal force
the perpendicular contact force that a surface exerts on another.
kinetic friction
a force exerted on one surface by another surface when the two surfaces rub against each other because on or both surfaces are moving.
static friciton
the force exerted on one surface bu another when there is no motion between two surfaces.
coefficient of friction
relates friction force to normal force. Mu. μ
coefficient of static friciton
the equation to find the maximum static friction force μ
kilo
thousand 10^3
hecto
hundred 10^2
one
1
deci
tenth 10^-1
centi
hundred 10^-2
mili
Thousandth 10^-3
EQ: 1
Vf= Vi +at
EQ: 2
Yf = Yi+Vi[t]+[1/2]gt^2
EQ: 3
a = (Vf-Vi)/t
EQ: 4
Vf^2 = Vi^2 + 2g(Xf-Xi)
{X-Direction}
Vf^2 = Vi^2 +2g(Yf-Yi)
{Y-Direction}
EQ: 5
Vf = Vi + gt
non sticky collisions
MaVa + MbVb = Ma'Va' + Mb'Vb'
sticky collisions
MaVa + MbVb = V'(Ma + Mb)
Velocity part 2
V = d/t OR V= 2πr/t
change in momentum EQ
ΔP = mΔv OR ΔP = m(Vf-Vi)
finding force of impulse
FΔt = ΔP OR FΔt = m(Vf-Vi)
ac
v^2/r
Law of universal Gravitation EQ
Fg = (Gm[1]m[2]) / r^2
circular motion
Fnet = mac
Projectile motion in X vs. Y direction
X has a constant velocity. Y has gravity as an accelerant
You might also like...
Physical Science CH 12 Forces and Motion
39 terms
Physical Science CH 12 Forces and Motion
39 terms
Science Chapter 12
40 terms
Physics Midterm
62 terms
Other sets by this creator
Vocabulary Exam (Mulvey)
71 terms
Vocabulary Level H Unit 7
20 terms
Norman Social Justice: Section One Part Two SG
17 terms
Modern World Chapter 3
27 terms
Other Quizlet sets
APUSH Exam 2
39 terms
LUOA U.S. History Test 8 Study Guide
108 terms
7 Ideas: Test One
29 terms
Human Development 101 Exam I
149 terms